src/MachOFileAbstraction.hpp

   1 /* -*- mode: C++; c-basic-offset: 4; tab-width: 4 -*-
   2  *
   3  * Copyright (c) 2005 Apple Computer, Inc. All rights reserved.
   4  *
   5  * @APPLE_LICENSE_HEADER_START@
   6  *
   7  * This file contains Original Code and/or Modifications of Original Code
   8  * as defined in and that are subject to the Apple Public Source License
   9  * Version 2.0 (the 'License'). You may not use this file except in
  10  * compliance with the License. Please obtain a copy of the License at
  11  * http://www.opensource.apple.com/apsl/ and read it before using this
  12  * file.
  13  *
  14  * The Original Code and all software distributed under the License are
  15  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  16  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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  19  * Please see the License for the specific language governing rights and
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  23 */
  24 #ifndef __MACH_O_FILE_ABSTRACTION__
  25 #define __MACH_O_FILE_ABSTRACTION__
  26
  27 #include <mach-o/loader.h>
  28 #include <mach-o/nlist.h>
  29 #include <mach-o/reloc.h>
  30 #include <mach/machine.h>
  31
  32 // suport older versions of mach-o/loader.h
  33 #ifndef LC_UUID
  34 #define LC_UUID         0x1b
  35 struct uuid_command {
  36     uint32_t    cmd;            /* LC_UUID */
  37     uint32_t    cmdsize;        /* sizeof(struct uuid_command) */
  38     uint8_t     uuid[16];       /* the 128-bit uuid */
  39 };
  40 #endif
  41
  42
  43 #include "FileAbstraction.hpp"
  44 #include "Architectures.hpp"
  45
  46
  47
  48 //
  49 // This abstraction layer makes every mach-o file look like a 64-bit mach-o file with native endianness
  50 //
  51
  52
  53
  54 //
  55 // mach-o file header
  56 //
  57 template <typename P> struct macho_header_content {};
  58 template <> struct macho_header_content<Pointer32<BigEndian> >    { mach_header         fields; };
  59 template <> struct macho_header_content<Pointer64<BigEndian> >    { mach_header_64      fields; };
  60 template <> struct macho_header_content<Pointer32<LittleEndian> > { mach_header         fields; };
  61 template <> struct macho_header_content<Pointer64<LittleEndian> > { mach_header_64      fields; };
  62
  63 template <typename P>
  64 class macho_header {
  65 public:
  66         uint32_t                magic() const                                   INLINE { return E::get32(header.fields.magic); }
  67         void                    set_magic(uint32_t value)               INLINE { E::set32(header.fields.magic, value); }
  68
  69         uint32_t                cputype() const                                 INLINE { return E::get32(header.fields.cputype); }
  70         void                    set_cputype(uint32_t value)             INLINE { E::set32((uint32_t&)header.fields.cputype, value); }
  71
  72         uint32_t                cpusubtype() const                              INLINE { return E::get32(header.fields.cpusubtype); }
  73         void                    set_cpusubtype(uint32_t value)  INLINE { E::set32((uint32_t&)header.fields.cpusubtype, value); }
  74
  75         uint32_t                filetype() const                                INLINE { return E::get32(header.fields.filetype); }
  76         void                    set_filetype(uint32_t value)    INLINE { E::set32(header.fields.filetype, value); }
  77
  78         uint32_t                ncmds() const                                   INLINE { return E::get32(header.fields.ncmds); }
  79         void                    set_ncmds(uint32_t value)               INLINE { E::set32(header.fields.ncmds, value); }
  80
  81         uint32_t                sizeofcmds() const                              INLINE { return E::get32(header.fields.sizeofcmds); }
  82         void                    set_sizeofcmds(uint32_t value)  INLINE { E::set32(header.fields.sizeofcmds, value); }
  83
  84         uint32_t                flags() const                                   INLINE { return E::get32(header.fields.flags); }
  85         void                    set_flags(uint32_t value)               INLINE { E::set32(header.fields.flags, value); }
  86
  87         uint32_t                reserved() const                                INLINE { return E::get32(header.fields.reserved); }
  88         void                    set_reserved(uint32_t value)    INLINE { E::set32(header.fields.reserved, value); }
  89
  90         typedef typename P::E           E;
  91 private:
  92         macho_header_content<P> header;
  93 };
  94
  95
  96 //
  97 // mach-o load command
  98 //
  99 template <typename P>
 100 class macho_load_command {
 101 public:
 102         uint32_t                cmd() const                                             INLINE { return E::get32(command.cmd); }
 103         void                    set_cmd(uint32_t value)                 INLINE { E::set32(command.cmd, value); }
 104
 105         uint32_t                cmdsize() const                                 INLINE { return E::get32(command.cmdsize); }
 106         void                    set_cmdsize(uint32_t value)             INLINE { E::set32(command.cmdsize, value); }
 107
 108         typedef typename P::E           E;
 109 private:
 110         load_command    command;
 111 };
 112
 113
 114 //
 115 // mach-o segment load command
 116 //
 117 template <typename P> struct macho_segment_content {};
 118 template <> struct macho_segment_content<Pointer32<BigEndian> >    { segment_command    fields; enum { CMD = LC_SEGMENT         }; };
 119 template <> struct macho_segment_content<Pointer64<BigEndian> >    { segment_command_64 fields; enum { CMD = LC_SEGMENT_64      }; };
 120 template <> struct macho_segment_content<Pointer32<LittleEndian> > { segment_command    fields; enum { CMD = LC_SEGMENT         }; };
 121 template <> struct macho_segment_content<Pointer64<LittleEndian> > { segment_command_64 fields; enum { CMD = LC_SEGMENT_64      }; };
 122
 123 template <typename P>
 124 class macho_segment_command {
 125 public:
 126         uint32_t                cmd() const                                             INLINE { return E::get32(segment.fields.cmd); }
 127         void                    set_cmd(uint32_t value)                 INLINE { E::set32(segment.fields.cmd, value); }
 128
 129         uint32_t                cmdsize() const                                 INLINE { return E::get32(segment.fields.cmdsize); }
 130         void                    set_cmdsize(uint32_t value)             INLINE { E::set32(segment.fields.cmdsize, value); }
 131
 132         const char*             segname() const                                 INLINE { return segment.fields.segname; }
 133         void                    set_segname(const char* value)  INLINE { memcpy(&segment.fields.segname, value, 16); }
 134
 135         uint64_t                vmaddr() const                                  INLINE { return P::getP(segment.fields.vmaddr); }
 136         void                    set_vmaddr(uint64_t value)              INLINE { P::setP(segment.fields.vmaddr, value); }
 137
 138         uint64_t                vmsize() const                                  INLINE { return P::getP(segment.fields.vmsize); }
 139         void                    set_vmsize(uint64_t value)              INLINE { P::setP(segment.fields.vmsize, value); }
 140
 141         uint64_t                fileoff() const                                 INLINE { return P::getP(segment.fields.fileoff); }
 142         void                    set_fileoff(uint64_t value)             INLINE { P::setP(segment.fields.fileoff, value); }
 143
 144         uint64_t                filesize() const                                INLINE { return P::getP(segment.fields.filesize); }
 145         void                    set_filesize(uint64_t value)    INLINE { P::setP(segment.fields.filesize, value); }
 146
 147         uint32_t                maxprot() const                                 INLINE { return E::get32(segment.fields.maxprot); }
 148         void                    set_maxprot(uint32_t value)             INLINE { E::set32((uint32_t&)segment.fields.maxprot, value); }
 149
 150         uint32_t                initprot() const                                INLINE { return E::get32(segment.fields.initprot); }
 151         void                    set_initprot(uint32_t value)    INLINE { E::set32((uint32_t&)segment.fields.initprot, value); }
 152
 153         uint32_t                nsects() const                                  INLINE { return E::get32(segment.fields.nsects); }
 154         void                    set_nsects(uint32_t value)              INLINE { E::set32(segment.fields.nsects, value); }
 155
 156         uint32_t                flags() const                                   INLINE { return E::get32(segment.fields.flags); }
 157         void                    set_flags(uint32_t value)               INLINE { E::set32(segment.fields.flags, value); }
 158
 159         enum {
 160                 CMD = macho_segment_content<P>::CMD
 161         };
 162
 163         typedef typename P::E           E;
 164 private:
 165         macho_segment_content<P>        segment;
 166 };
 167
 168
 169 //
 170 // mach-o section
 171 //
 172 template <typename P> struct macho_section_content {};
 173 template <> struct macho_section_content<Pointer32<BigEndian> >    { section    fields; };
 174 template <> struct macho_section_content<Pointer64<BigEndian> >    { section_64 fields; };
 175 template <> struct macho_section_content<Pointer32<LittleEndian> > { section    fields; };
 176 template <> struct macho_section_content<Pointer64<LittleEndian> > { section_64 fields; };
 177
 178 template <typename P>
 179 class macho_section {
 180 public:
 181         const char*             sectname() const                                INLINE { return section.fields.sectname; }
 182         void                    set_sectname(const char* value) INLINE { memcpy(&section.fields.sectname, value, 16); }
 183
 184         const char*             segname() const                                 INLINE { return section.fields.segname; }
 185         void                    set_segname(const char* value)  INLINE { memcpy(&section.fields.segname, value, 16); }
 186
 187         uint64_t                addr() const                                    INLINE { return P::getP(section.fields.addr); }
 188         void                    set_addr(uint64_t value)                INLINE { P::setP(section.fields.addr, value); }
 189
 190         uint64_t                size() const                                    INLINE { return P::getP(section.fields.size); }
 191         void                    set_size(uint64_t value)                INLINE { P::setP(section.fields.size, value); }
 192
 193         uint32_t                offset() const                                  INLINE { return E::get32(section.fields.offset); }
 194         void                    set_offset(uint32_t value)              INLINE { E::set32(section.fields.offset, value); }
 195
 196         uint32_t                align() const                                   INLINE { return E::get32(section.fields.align); }
 197         void                    set_align(uint32_t value)               INLINE { E::set32(section.fields.align, value); }
 198
 199         uint32_t                reloff() const                                  INLINE { return E::get32(section.fields.reloff); }
 200         void                    set_reloff(uint32_t value)              INLINE { E::set32(section.fields.reloff, value); }
 201
 202         uint32_t                nreloc() const                                  INLINE { return E::get32(section.fields.nreloc); }
 203         void                    set_nreloc(uint32_t value)              INLINE { E::set32(section.fields.nreloc, value); }
 204
 205         uint32_t                flags() const                                   INLINE { return E::get32(section.fields.flags); }
 206         void                    set_flags(uint32_t value)               INLINE { E::set32(section.fields.flags, value); }
 207
 208         uint32_t                reserved1() const                               INLINE { return E::get32(section.fields.reserved1); }
 209         void                    set_reserved1(uint32_t value)   INLINE { E::set32(section.fields.reserved1, value); }
 210
 211         uint32_t                reserved2() const                               INLINE { return E::get32(section.fields.reserved2); }
 212         void                    set_reserved2(uint32_t value)   INLINE { E::set32(section.fields.reserved2, value); }
 213
 214         typedef typename P::E           E;
 215 private:
 216         macho_section_content<P>        section;
 217 };
 218
 219
 220 //
 221 // mach-o dylib load command
 222 //
 223 template <typename P>
 224 class macho_dylib_command {
 225 public:
 226         uint32_t                cmd() const                                                                     INLINE { return E::get32(fields.cmd); }
 227         void                    set_cmd(uint32_t value)                                         INLINE { E::set32(fields.cmd, value); }
 228
 229         uint32_t                cmdsize() const                                                         INLINE { return E::get32(fields.cmdsize); }
 230         void                    set_cmdsize(uint32_t value)                                     INLINE { E::set32(fields.cmdsize, value); }
 231
 232         uint32_t                name_offset() const                                                     INLINE { return E::get32(fields.dylib.name.offset); }
 233         void                    set_name_offset(uint32_t value)                         INLINE { E::set32(fields.dylib.name.offset, value);  }
 234
 235         uint32_t                timestamp() const                                                       INLINE { return E::get32(fields.dylib.timestamp); }
 236         void                    set_timestamp(uint32_t value)                           INLINE { E::set32(fields.dylib.timestamp, value); }
 237
 238         uint32_t                current_version() const                                         INLINE { return E::get32(fields.dylib.current_version); }
 239         void                    set_current_version(uint32_t value)                     INLINE { E::set32(fields.dylib.current_version, value); }
 240
 241         uint32_t                compatibility_version() const                           INLINE { return E::get32(fields.dylib.compatibility_version); }
 242         void                    set_compatibility_version(uint32_t value)       INLINE { E::set32(fields.dylib.compatibility_version, value); }
 243
 244         const char*             name() const                                                            INLINE { return (const char*)&fields + name_offset(); }
 245         void                    set_name_offset()                                                       INLINE { set_name_offset(sizeof(fields)); }
 246
 247         typedef typename P::E           E;
 248 private:
 249         dylib_command   fields;
 250 };
 251
 252
 253 //
 254 // mach-o dylinker load command
 255 //
 256 template <typename P>
 257 class macho_dylinker_command {
 258 public:
 259         uint32_t                cmd() const                                                     INLINE { return E::get32(fields.cmd); }
 260         void                    set_cmd(uint32_t value)                         INLINE { E::set32(fields.cmd, value); }
 261
 262         uint32_t                cmdsize() const                                         INLINE { return E::get32(fields.cmdsize); }
 263         void                    set_cmdsize(uint32_t value)                     INLINE { E::set32(fields.cmdsize, value); }
 264
 265         uint32_t                name_offset() const                                     INLINE { return E::get32(fields.name.offset); }
 266         void                    set_name_offset(uint32_t value)         INLINE { E::set32(fields.name.offset, value);  }
 267
 268         const char*             name() const                                            INLINE { return (const char*)&fields + name_offset(); }
 269         void                    set_name_offset()                                       INLINE { set_name_offset(sizeof(fields)); }
 270
 271         typedef typename P::E           E;
 272 private:
 273         dylinker_command        fields;
 274 };
 275
 276
 277 //
 278 // mach-o sub_framework load command
 279 //
 280 template <typename P>
 281 class macho_sub_framework_command {
 282 public:
 283         uint32_t                cmd() const                                                     INLINE { return E::get32(fields.cmd); }
 284         void                    set_cmd(uint32_t value)                         INLINE { E::set32(fields.cmd, value); }
 285
 286         uint32_t                cmdsize() const                                         INLINE { return E::get32(fields.cmdsize); }
 287         void                    set_cmdsize(uint32_t value)                     INLINE { E::set32(fields.cmdsize, value); }
 288
 289         uint32_t                umbrella_offset() const                         INLINE { return E::get32(fields.umbrella.offset); }
 290         void                    set_umbrella_offset(uint32_t value)     INLINE { E::set32(fields.umbrella.offset, value);  }
 291
 292         const char*             umbrella() const                                        INLINE { return (const char*)&fields + umbrella_offset(); }
 293         void                    set_umbrella_offset()                           INLINE { set_umbrella_offset(sizeof(fields)); }
 294
 295         typedef typename P::E           E;
 296 private:
 297         sub_framework_command   fields;
 298 };
 299
 300
 301 //
 302 // mach-o sub_client load command
 303 //
 304 template <typename P>
 305 class macho_sub_client_command {
 306 public:
 307         uint32_t                cmd() const                                                     INLINE { return E::get32(fields.cmd); }
 308         void                    set_cmd(uint32_t value)                         INLINE { E::set32(fields.cmd, value); }
 309
 310         uint32_t                cmdsize() const                                         INLINE { return E::get32(fields.cmdsize); }
 311         void                    set_cmdsize(uint32_t value)                     INLINE { E::set32(fields.cmdsize, value); }
 312
 313         uint32_t                client_offset() const                           INLINE { return E::get32(fields.client.offset); }
 314         void                    set_client_offset(uint32_t value)       INLINE { E::set32(fields.client.offset, value);  }
 315
 316         const char*             client() const                                          INLINE { return (const char*)&fields + client_offset(); }
 317         void                    set_client_offset()                                     INLINE { set_client_offset(sizeof(fields)); }
 318
 319         typedef typename P::E           E;
 320 private:
 321         sub_client_command      fields;
 322 };
 323
 324
 325 //
 326 // mach-o sub_umbrella load command
 327 //
 328 template <typename P>
 329 class macho_sub_umbrella_command {
 330 public:
 331         uint32_t                cmd() const                                                             INLINE { return E::get32(fields.cmd); }
 332         void                    set_cmd(uint32_t value)                                 INLINE { E::set32(fields.cmd, value); }
 333
 334         uint32_t                cmdsize() const                                                 INLINE { return E::get32(fields.cmdsize); }
 335         void                    set_cmdsize(uint32_t value)                             INLINE { E::set32(fields.cmdsize, value); }
 336
 337         uint32_t                sub_umbrella_offset() const                             INLINE { return E::get32(fields.sub_umbrella.offset); }
 338         void                    set_sub_umbrella_offset(uint32_t value) INLINE { E::set32(fields.sub_umbrella.offset, value);  }
 339
 340         const char*             sub_umbrella() const                                    INLINE { return (const char*)&fields + sub_umbrella_offset(); }
 341         void                    set_sub_umbrella_offset()                               INLINE { set_sub_umbrella_offset(sizeof(fields)); }
 342
 343         typedef typename P::E           E;
 344 private:
 345         sub_umbrella_command    fields;
 346 };
 347
 348
 349 //
 350 // mach-o sub_library load command
 351 //
 352 template <typename P>
 353 class macho_sub_library_command {
 354 public:
 355         uint32_t                cmd() const                                                             INLINE { return E::get32(fields.cmd); }
 356         void                    set_cmd(uint32_t value)                                 INLINE { E::set32(fields.cmd, value); }
 357
 358         uint32_t                cmdsize() const                                                 INLINE { return E::get32(fields.cmdsize); }
 359         void                    set_cmdsize(uint32_t value)                             INLINE { E::set32(fields.cmdsize, value); }
 360
 361         uint32_t                sub_library_offset() const                              INLINE { return E::get32(fields.sub_library.offset); }
 362         void                    set_sub_library_offset(uint32_t value)  INLINE { E::set32(fields.sub_library.offset, value);  }
 363
 364         const char*             sub_library() const                                             INLINE { return (const char*)&fields + sub_library_offset(); }
 365         void                    set_sub_library_offset()                                INLINE { set_sub_library_offset(sizeof(fields)); }
 366
 367         typedef typename P::E           E;
 368 private:
 369         sub_library_command     fields;
 370 };
 371
 372
 373 //
 374 // mach-o uuid load command
 375 //
 376 template <typename P>
 377 class macho_uuid_command {
 378 public:
 379         uint32_t                cmd() const                                                             INLINE { return E::get32(fields.cmd); }
 380         void                    set_cmd(uint32_t value)                                 INLINE { E::set32(fields.cmd, value); }
 381
 382         uint32_t                cmdsize() const                                                 INLINE { return E::get32(fields.cmdsize); }
 383         void                    set_cmdsize(uint32_t value)                             INLINE { E::set32(fields.cmdsize, value); }
 384
 385         const uint8_t*  uuid() const                                                    INLINE { return fields.uuid; }
 386         void                    set_uuid(uint8_t uuid[16])                              INLINE { memcpy(&fields.uuid, uuid, 16); }
 387
 388         typedef typename P::E           E;
 389 private:
 390         uuid_command    fields;
 391 };
 392
 393
 394 //
 395 // mach-o routines load command
 396 //
 397 template <typename P> struct macho_routines_content {};
 398 template <> struct macho_routines_content<Pointer32<BigEndian> >    { routines_command          fields; enum { CMD = LC_ROUTINES        }; };
 399 template <> struct macho_routines_content<Pointer64<BigEndian> >        { routines_command_64   fields; enum { CMD = LC_ROUTINES_64     }; };
 400 template <> struct macho_routines_content<Pointer32<LittleEndian> > { routines_command          fields; enum { CMD = LC_ROUTINES        }; };
 401 template <> struct macho_routines_content<Pointer64<LittleEndian> > { routines_command_64       fields; enum { CMD = LC_ROUTINES_64     }; };
 402
 403 template <typename P>
 404 class macho_routines_command {
 405 public:
 406         uint32_t                cmd() const                                                     INLINE { return E::get32(routines.fields.cmd); }
 407         void                    set_cmd(uint32_t value)                         INLINE { E::set32(routines.fields.cmd, value); }
 408
 409         uint32_t                cmdsize() const                                         INLINE { return E::get32(routines.fields.cmdsize); }
 410         void                    set_cmdsize(uint32_t value)                     INLINE { E::set32(routines.fields.cmdsize, value); }
 411
 412         uint64_t                init_address() const                            INLINE { return P::getP(routines.fields.init_address); }
 413         void                    set_init_address(uint64_t value)        INLINE { P::setP(routines.fields.init_address, value); }
 414
 415         uint64_t                init_module() const                                     INLINE { return P::getP(routines.fields.init_module); }
 416         void                    set_init_module(uint64_t value)         INLINE { P::setP(routines.fields.init_module, value); }
 417
 418         uint64_t                reserved1() const                                       INLINE { return P::getP(routines.fields.reserved1); }
 419         void                    set_reserved1(uint64_t value)           INLINE { P::setP(routines.fields.reserved1, value); }
 420
 421         uint64_t                reserved2() const                                       INLINE { return P::getP(routines.fields.reserved2); }
 422         void                    set_reserved2(uint64_t value)           INLINE { P::setP(routines.fields.reserved2, value); }
 423
 424         uint64_t                reserved3() const                                       INLINE { return P::getP(routines.fields.reserved3); }
 425         void                    set_reserved3(uint64_t value)           INLINE { P::setP(routines.fields.reserved3, value); }
 426
 427         uint64_t                reserved4() const                                       INLINE { return P::getP(routines.fields.reserved4); }
 428         void                    set_reserved4(uint64_t value)           INLINE { P::setP(routines.fields.reserved4, value); }
 429
 430         uint64_t                reserved5() const                                       INLINE { return P::getP(routines.fields.reserved5); }
 431         void                    set_reserved5(uint64_t value)           INLINE { P::setP(routines.fields.reserved5, value); }
 432
 433         uint64_t                reserved6() const                                       INLINE { return P::getP(routines.fields.reserved6); }
 434         void                    set_reserved6(uint64_t value)           INLINE { P::setP(routines.fields.reserved6, value); }
 435
 436         typedef typename P::E           E;
 437         enum {
 438                 CMD = macho_routines_content<P>::CMD
 439         };
 440 private:
 441         macho_routines_content<P>       routines;
 442 };
 443
 444
 445 //
 446 // mach-o symbol table load command
 447 //
 448 template <typename P>
 449 class macho_symtab_command {
 450 public:
 451         uint32_t                cmd() const                                     INLINE { return E::get32(fields.cmd); }
 452         void                    set_cmd(uint32_t value)         INLINE { E::set32(fields.cmd, value); }
 453
 454         uint32_t                cmdsize() const                         INLINE { return E::get32(fields.cmdsize); }
 455         void                    set_cmdsize(uint32_t value)     INLINE { E::set32(fields.cmdsize, value); }
 456
 457         uint32_t                symoff() const                          INLINE { return E::get32(fields.symoff); }
 458         void                    set_symoff(uint32_t value)      INLINE { E::set32(fields.symoff, value);  }
 459
 460         uint32_t                nsyms() const                           INLINE { return E::get32(fields.nsyms); }
 461         void                    set_nsyms(uint32_t value)       INLINE { E::set32(fields.nsyms, value);  }
 462
 463         uint32_t                stroff() const                          INLINE { return E::get32(fields.stroff); }
 464         void                    set_stroff(uint32_t value)      INLINE { E::set32(fields.stroff, value);  }
 465
 466         uint32_t                strsize() const                         INLINE { return E::get32(fields.strsize); }
 467         void                    set_strsize(uint32_t value)     INLINE { E::set32(fields.strsize, value);  }
 468
 469
 470         typedef typename P::E           E;
 471 private:
 472         symtab_command  fields;
 473 };
 474
 475
 476 //
 477 // mach-o dynamic symbol table load command
 478 //
 479 template <typename P>
 480 class macho_dysymtab_command {
 481 public:
 482         uint32_t                cmd() const                                                     INLINE { return E::get32(fields.cmd); }
 483         void                    set_cmd(uint32_t value)                         INLINE { E::set32(fields.cmd, value); }
 484
 485         uint32_t                cmdsize() const                                         INLINE { return E::get32(fields.cmdsize); }
 486         void                    set_cmdsize(uint32_t value)                     INLINE { E::set32(fields.cmdsize, value); }
 487
 488         uint32_t                ilocalsym() const                                       INLINE { return E::get32(fields.ilocalsym); }
 489         void                    set_ilocalsym(uint32_t value)           INLINE { E::set32(fields.ilocalsym, value);  }
 490
 491         uint32_t                nlocalsym() const                                       INLINE { return E::get32(fields.nlocalsym); }
 492         void                    set_nlocalsym(uint32_t value)           INLINE { E::set32(fields.nlocalsym, value);  }
 493
 494         uint32_t                iextdefsym() const                                      INLINE { return E::get32(fields.iextdefsym); }
 495         void                    set_iextdefsym(uint32_t value)          INLINE { E::set32(fields.iextdefsym, value);  }
 496
 497         uint32_t                nextdefsym() const                                      INLINE { return E::get32(fields.nextdefsym); }
 498         void                    set_nextdefsym(uint32_t value)          INLINE { E::set32(fields.nextdefsym, value);  }
 499
 500         uint32_t                iundefsym() const                                       INLINE { return E::get32(fields.iundefsym); }
 501         void                    set_iundefsym(uint32_t value)           INLINE { E::set32(fields.iundefsym, value);  }
 502
 503         uint32_t                nundefsym() const                                       INLINE { return E::get32(fields.nundefsym); }
 504         void                    set_nundefsym(uint32_t value)           INLINE { E::set32(fields.nundefsym, value);  }
 505
 506         uint32_t                tocoff() const                                          INLINE { return E::get32(fields.tocoff); }
 507         void                    set_tocoff(uint32_t value)                      INLINE { E::set32(fields.tocoff, value);  }
 508
 509         uint32_t                ntoc() const                                            INLINE { return E::get32(fields.ntoc); }
 510         void                    set_ntoc(uint32_t value)                        INLINE { E::set32(fields.ntoc, value);  }
 511
 512         uint32_t                modtaboff() const                                       INLINE { return E::get32(fields.modtaboff); }
 513         void                    set_modtaboff(uint32_t value)           INLINE { E::set32(fields.modtaboff, value);  }
 514
 515         uint32_t                nmodtab() const                                         INLINE { return E::get32(fields.nmodtab); }
 516         void                    set_nmodtab(uint32_t value)                     INLINE { E::set32(fields.nmodtab, value);  }
 517
 518         uint32_t                extrefsymoff() const                            INLINE { return E::get32(fields.extrefsymoff); }
 519         void                    set_extrefsymoff(uint32_t value)        INLINE { E::set32(fields.extrefsymoff, value);  }
 520
 521         uint32_t                nextrefsyms() const                                     INLINE { return E::get32(fields.nextrefsyms); }
 522         void                    set_nextrefsyms(uint32_t value)         INLINE { E::set32(fields.nextrefsyms, value);  }
 523
 524         uint32_t                indirectsymoff() const                          INLINE { return E::get32(fields.indirectsymoff); }
 525         void                    set_indirectsymoff(uint32_t value)      INLINE { E::set32(fields.indirectsymoff, value);  }
 526
 527         uint32_t                nindirectsyms() const                           INLINE { return E::get32(fields.nindirectsyms); }
 528         void                    set_nindirectsyms(uint32_t value)       INLINE { E::set32(fields.nindirectsyms, value);  }
 529
 530         uint32_t                extreloff() const                                       INLINE { return E::get32(fields.extreloff); }
 531         void                    set_extreloff(uint32_t value)           INLINE { E::set32(fields.extreloff, value);  }
 532
 533         uint32_t                nextrel() const                                         INLINE { return E::get32(fields.nextrel); }
 534         void                    set_nextrel(uint32_t value)                     INLINE { E::set32(fields.nextrel, value);  }
 535
 536         uint32_t                locreloff() const                                       INLINE { return E::get32(fields.locreloff); }
 537         void                    set_locreloff(uint32_t value)           INLINE { E::set32(fields.locreloff, value);  }
 538
 539         uint32_t                nlocrel() const                                         INLINE { return E::get32(fields.nlocrel); }
 540         void                    set_nlocrel(uint32_t value)                     INLINE { E::set32(fields.nlocrel, value);  }
 541
 542         typedef typename P::E           E;
 543 private:
 544         dysymtab_command        fields;
 545 };
 546
 547
 548 //
 549 // mach-o two-level hints load command
 550 //
 551 template <typename P>
 552 class macho_twolevel_hints_command {
 553 public:
 554         uint32_t                cmd() const                                     INLINE { return E::get32(fields.cmd); }
 555         void                    set_cmd(uint32_t value)         INLINE { E::set32(fields.cmd, value); }
 556
 557         uint32_t                cmdsize() const                         INLINE { return E::get32(fields.cmdsize); }
 558         void                    set_cmdsize(uint32_t value)     INLINE { E::set32(fields.cmdsize, value); }
 559
 560         uint32_t                offset() const                          INLINE { return E::get32(fields.offset); }
 561         void                    set_offset(uint32_t value)      INLINE { E::set32(fields.offset, value);  }
 562
 563         uint32_t                nhints() const                          INLINE { return E::get32(fields.nhints); }
 564         void                    set_nhints(uint32_t value)      INLINE { E::set32(fields.nhints, value);  }
 565
 566         typedef typename P::E           E;
 567 private:
 568         twolevel_hints_command  fields;
 569 };
 570
 571
 572 //
 573 // mach-o threads load command
 574 //
 575 template <typename P>
 576 class macho_thread_command {
 577 public:
 578         uint32_t                cmd() const                                                                                     INLINE { return E::get32(fields.cmd); }
 579         void                    set_cmd(uint32_t value)                                                         INLINE { E::set32(fields.cmd, value); }
 580
 581         uint32_t                cmdsize() const                                                                         INLINE { return E::get32(fields.cmdsize); }
 582         void                    set_cmdsize(uint32_t value)                                                     INLINE { E::set32(fields.cmdsize, value); }
 583
 584         uint32_t                flavor() const                                                                          INLINE { return E::get32(fields_flavor); }
 585         void                    set_flavor(uint32_t value)                                                      INLINE { E::set32(fields_flavor, value);  }
 586
 587         uint32_t                count() const                                                                           INLINE { return E::get32(fields_count); }
 588         void                    set_count(uint32_t value)                                                       INLINE { E::set32(fields_count, value);  }
 589
 590         uint64_t                thread_register(uint32_t index) const                           INLINE { return P::getP(thread_registers[index]); }
 591         void                    set_thread_register(uint32_t index, uint64_t value)     INLINE { P::setP(thread_registers[index], value); }
 592
 593         typedef typename P::E           E;
 594         typedef typename P::uint_t      pint_t;
 595 private:
 596         struct thread_command   fields;
 597         uint32_t                                fields_flavor;
 598         uint32_t                                fields_count;
 599         pint_t                                  thread_registers[1];
 600 };
 601
 602
 603
 604
 605 //
 606 // mach-o symbol table entry
 607 //
 608 template <typename P> struct macho_nlist_content {};
 609 template <> struct macho_nlist_content<Pointer32<BigEndian> >    { struct nlist         fields; };
 610 template <> struct macho_nlist_content<Pointer64<BigEndian> >    { struct nlist_64      fields; };
 611 template <> struct macho_nlist_content<Pointer32<LittleEndian> > { struct nlist         fields; };
 612 template <> struct macho_nlist_content<Pointer64<LittleEndian> > { struct nlist_64      fields; };
 613
 614 template <typename P>
 615 class macho_nlist {
 616 public:
 617         uint32_t                n_strx() const                                  INLINE { return E::get32(entry.fields.n_un.n_strx); }
 618         void                    set_n_strx(uint32_t value)              INLINE { E::set32((uint32_t&)entry.fields.n_un.n_strx, value); }
 619
 620         uint8_t                 n_type() const                                  INLINE { return entry.fields.n_type; }
 621         void                    set_n_type(uint8_t value)               INLINE { entry.fields.n_type = value; }
 622
 623         uint8_t                 n_sect() const                                  INLINE { return entry.fields.n_sect; }
 624         void                    set_n_sect(uint8_t value)               INLINE { entry.fields.n_sect = value; }
 625
 626         uint16_t                n_desc() const                                  INLINE { return E::get16(entry.fields.n_desc); }
 627         void                    set_n_desc(uint16_t value)              INLINE { E::set16((uint16_t&)entry.fields.n_desc, value); }
 628
 629         uint64_t                n_value() const                                 INLINE { return P::getP(entry.fields.n_value); }
 630         void                    set_n_value(uint64_t value)             INLINE { P::setP(entry.fields.n_value, value); }
 631
 632         typedef typename P::E           E;
 633 private:
 634         macho_nlist_content<P>  entry;
 635 };
 636
 637
 638
 639 //
 640 // mach-o relocation info
 641 //
 642 template <typename P>
 643 class macho_relocation_info {
 644 public:
 645         uint32_t                r_address() const                               INLINE { return E::get32(address); }
 646         void                    set_r_address(uint32_t value)   INLINE { E::set32(address, value); }
 647
 648         uint32_t                r_symbolnum() const                             INLINE { return E::getBits(other, 0, 24); }
 649         void                    set_r_symbolnum(uint32_t value) INLINE { E::setBits(other, value, 0, 24); }
 650
 651         bool                    r_pcrel() const                                 INLINE { return E::getBits(other, 24, 1); }
 652         void                    set_r_pcrel(bool value)                 INLINE { E::setBits(other, value, 24, 1); }
 653
 654         uint8_t                 r_length() const                                INLINE { return E::getBits(other, 25, 2); }
 655         void                    set_r_length(uint8_t value)             INLINE { E::setBits(other, value, 25, 2); }
 656
 657         bool                    r_extern() const                                INLINE { return E::getBits(other, 27, 1); }
 658         void                    set_r_extern(bool value)                INLINE { E::setBits(other, value, 27, 1); }
 659
 660         uint8_t                 r_type() const                                  INLINE { return E::getBits(other, 28, 4); }
 661         void                    set_r_type(uint8_t value)               INLINE { E::setBits(other, value, 28, 4); }
 662
 663         void                    set_r_length()                                  INLINE { set_r_length((sizeof(typename P::uint_t)==8) ? 3 : 2); }
 664
 665         typedef typename P::E           E;
 666 private:
 667         uint32_t                address;
 668         uint32_t                other;
 669 };
 670
 671
 672 //
 673 // mach-o scattered relocation info
 674 // The bit fields are always in big-endian order (see mach-o/reloc.h)
 675 //
 676 template <typename P>
 677 class macho_scattered_relocation_info {
 678 public:
 679         bool                    r_scattered() const                     INLINE { return BigEndian::getBitsRaw(E::get32(other), 0, 1); }
 680         void                    set_r_scattered(bool x)         INLINE { uint32_t temp = E::get32(other); BigEndian::setBitsRaw(temp, x, 0, 1);  E::set32(other, temp); }
 681
 682         bool                    r_pcrel() const                         INLINE { return BigEndian::getBitsRaw(E::get32(other), 1, 1); }
 683         void                    set_r_pcrel(bool x)                     INLINE { uint32_t temp = E::get32(other); BigEndian::setBitsRaw(temp, x, 1, 1);  E::set32(other, temp); }
 684
 685         uint8_t                 r_length() const                        INLINE { return BigEndian::getBitsRaw(E::get32(other), 2, 2); }
 686         void                    set_r_length(uint8_t x)         INLINE { uint32_t temp = E::get32(other); BigEndian::setBitsRaw(temp, x, 2, 2);  E::set32(other, temp); }
 687
 688         uint8_t                 r_type() const                          INLINE { return BigEndian::getBitsRaw(E::get32(other), 4, 4); }
 689         void                    set_r_type(uint8_t x)           INLINE { uint32_t temp = E::get32(other); BigEndian::setBitsRaw(temp, x, 4, 4);  E::set32(other, temp); }
 690
 691         uint32_t                r_address() const                       INLINE { return BigEndian::getBitsRaw(E::get32(other), 8, 24); }
 692         void                    set_r_address(uint32_t x)       INLINE { uint32_t temp = E::get32(other); BigEndian::setBitsRaw(temp, x, 8, 24);  E::set32(other, temp); }
 693
 694         uint32_t                r_value() const                         INLINE { return E::get32(value); }
 695         void                    set_r_value(uint32_t x)         INLINE { E::set32(value, x); }
 696
 697         uint32_t                r_other() const                         INLINE { return other; }
 698
 699         typedef typename P::E           E;
 700 private:
 701         uint32_t                other;
 702         uint32_t                value;
 703 };
 704
 705
 706
 707
 708
 709
 710 #endif  // __MACH_O_FILE_ABSTRACTION__
 711
 712